{"id":178370,"date":"2024-11-08T17:54:25","date_gmt":"2024-11-08T09:54:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178370\/"},"modified":"2024-11-08T17:54:26","modified_gmt":"2024-11-08T09:54:26","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41318-sqlstate-42000-er_sp_cond_mismatchs%e6%9c%aa%e5%ae%9a%e7%be%a9%e7%9a%84%e6%a2%9d%e4%bb%b6%ef%bc%9as","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178370\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41318 &#8211; SQLSTATE: 42000 (ER_SP_COND_MISMATCH)%s\u672a\u5b9a\u7fa9\u7684\u689d\u4ef6\uff1a%s"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41318-sqlstate-42000-er_sp_cond_mismatch-QWKfabLUXO\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41318 &#8211; SQLSTATE: 42000 (ER_SP_COND_MISMATCH)<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41318\uff0c\u8a72\u932f\u8aa4\u7684SQLSTATE\u4ee3\u78bc\u70ba42000\uff0c\u4e26\u4e14\u986f\u793a\u70ba\u201c\u672a\u5b9a\u7fa9\u7684\u689d\u4ef6\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u689d\u4ef6\u8a9e\u53e5\u4e0d\u5339\u914d\u6709\u95dc\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u8a72\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41318%e7%9a%84%e5%8e%9f%e5%9b%a0-QWKfabLUXO\">\u932f\u8aa41318\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa41318\u901a\u5e38\u767c\u751f\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u689d\u4ef6\u8a9e\u53e5\u3002\u9019\u53ef\u80fd\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u689d\u4ef6\u672a\u5b9a\u7fa9\uff1a<\/strong>\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\u4f7f\u7528\u7684\u689d\u4ef6\u53ef\u80fd\u672a\u6b63\u78ba\u5b9a\u7fa9\uff0c\u5c0e\u81f4MySQL\u7121\u6cd5\u8b58\u5225\u3002<\/li>\n<li><strong>\u908f\u8f2f\u932f\u8aa4\uff1a<\/strong>\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u908f\u8f2f\u932f\u8aa4\u53ef\u80fd\u5c0e\u81f4\u689d\u4ef6\u4e0d\u5339\u914d\uff0c\u5f9e\u800c\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u7248\u672c\u4e0d\u517c\u5bb9\uff1a<\/strong>\u67d0\u4e9bMySQL\u7248\u672c\u53ef\u80fd\u5c0d\u689d\u4ef6\u7684\u8655\u7406\u6709\u6240\u4e0d\u540c\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u932f\u8aa4\u7684\u767c\u751f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41318-QWKfabLUXO\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41318<\/h2>\n<p>\u4fee\u5fa9MySQL\u932f\u8aa41318\u9700\u8981\u5c0d\u5b58\u5132\u904e\u7a0b\u9032\u884c\u4ed4\u7d30\u6aa2\u67e5\u548c\u8abf\u6574\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%ad%98%e5%84%b2%e9%81%8e%e7%a8%8b%e7%9a%84%e5%ae%9a%e7%be%a9-QWKfabLUXO\">1. \u6aa2\u67e5\u5b58\u5132\u904e\u7a0b\u7684\u5b9a\u7fa9<\/h3>\n<pre><code>\nDELIMITER \/\/\nCREATE PROCEDURE example_procedure()\nBEGIN\n    DECLARE condition_met BOOLEAN DEFAULT FALSE;\n\n    IF condition_met THEN\n        -- \u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\n    ELSE\n        SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT = '\u689d\u4ef6\u672a\u6eff\u8db3';\n    END IF;\nEND \/\/\nDELIMITER ;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u78ba\u4fdd\u689d\u4ef6 <code>condition_met<\/code> \u88ab\u6b63\u78ba\u8a2d\u7f6e\u3002\u5982\u679c\u689d\u4ef6\u672a\u88ab\u6b63\u78ba\u5b9a\u7fa9\uff0c\u5247\u6703\u5c0e\u81f4\u932f\u8aa41318\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8signal%e8%aa%9e%e5%8f%a5-QWKfabLUXO\">2. \u4f7f\u7528SIGNAL\u8a9e\u53e5<\/h3>\n<p>\u5728\u5b58\u5132\u904e\u7a0b\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>SIGNAL<\/code> \u8a9e\u53e5\u4f86\u660e\u78ba\u5831\u544a\u932f\u8aa4\u3002\u9019\u6a23\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u554f\u984c\u6240\u5728\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>\nIF NOT condition_met THEN\n    SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT = '\u689d\u4ef6\u672a\u6eff\u8db3\uff0c\u8acb\u6aa2\u67e5\u908f\u8f2f';\nEND IF;\n<\/code><\/pre>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e5%92%8c%e8%aa%bf%e8%a9%a6-QWKfabLUXO\">3. \u6e2c\u8a66\u548c\u8abf\u8a66<\/h3>\n<p>\u5728\u4fee\u5fa9\u5b58\u5132\u904e\u7a0b\u5f8c\uff0c\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u554f\u984c\u5df2\u89e3\u6c7a\u3002\u53ef\u4ee5\u4f7f\u7528 <code>CALL<\/code> \u8a9e\u53e5\u4f86\u8abf\u7528\u5b58\u5132\u904e\u7a0b\u4e26\u6aa2\u67e5\u5176\u884c\u70ba\uff1a<\/p>\n<pre><code>\nCALL example_procedure();\n<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-QWKfabLUXO\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u51fa\u73fe\u985e\u4f3c\u7684\u932f\u8aa4\uff0c\u958b\u767c\u8005\u61c9\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u5728\u7de8\u5beb\u5b58\u5132\u904e\u7a0b\u6642\uff0c\u59cb\u7d42\u660e\u78ba\u5b9a\u7fa9\u6240\u6709\u689d\u4ef6\u3002<\/li>\n<li>\u4f7f\u7528\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4f8b\u5982 <code>SIGNAL<\/code> \u8a9e\u53e5\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0MySQL\u7248\u672c\uff0c\u4ee5\u78ba\u4fdd\u517c\u5bb9\u6027\u548c\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QWKfabLUXO\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41318\uff08SQLSTATE: 42000\uff09\u901a\u5e38\u662f\u7531\u65bc\u5b58\u5132\u904e\u7a0b\u4e2d\u7684\u689d\u4ef6\u4e0d\u5339\u914d\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u5b58\u5132\u904e\u7a0b\u7684\u5b9a\u7fa9\u3001\u4f7f\u7528SIGNAL\u8a9e\u53e5\u9032\u884c\u932f\u8aa4\u8655\u7406\u4ee5\u53ca\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u5c07\u6709\u52a9\u65bc\u6e1b\u5c11\u672a\u4f86\u51fa\u73fe\u985e\u4f3c\u554f\u984c\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u6216\u5e0c\u671b\u4e86\u89e3\u5982\u4f55\u5728\u60a8\u7684\u4f3a\u670d\u5668\u4e0a\u66f4\u597d\u5730\u7ba1\u7406MySQL\u6578\u64da\u5eab\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41318\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u5206\u6790\u672a\u5b9a\u7fa9\u689d\u4ef6\u53ca\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u60a8\u5feb\u901f\u6062\u5fa9\u6578\u64da\u5eab\u6b63\u5e38\u904b\u884c\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-178370","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=178370"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178370\/revisions"}],"predecessor-version":[{"id":178371,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178370\/revisions\/178371"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}